For scenarios in which there are more than two hundred users, Synactive recommends implementing load-balancing. Load balancing enables you to spread the work among two or more servers, thus reducing the load and optimizing your results. There are four possible scenarios for deploying Liquid UI Server and of these, two incorporate load-balancing. These scenarios are as follows.
- Scenario I
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This scenario incorporates a single, standalone Liquid UI Server and a single SAP Application server.
- Scenario II
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This scenario involves a Liquid UI Message Server and a single SAP Application Server.
- Scenario III
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This scenario includes a single, standalone Liquid UI Server and an SAP Message Server communicating with multiple SAP Application Servers.
- Scenario IV
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This scenario incorporates a Liquid UI Message Server and an SAP Message Server. The Liquid UI Message Server communicates with multiple Liquid UI Servers and the SAP Message Server similarly communicates with multiple SAP Application Servers.
The two Liquid UI Server scenarios that incorporate load-balancing are those that include either a Liquid UI Message Server or an SAP Message Server. It is important to remember that connecting to one SAP ERP system is not necessarily the same thing as connecting to one SAP ERP message server. Multiple application servers can be defined to distribute a load of a single SAP system (eg. PRD) via an SAP message server. Each of the scenarios is more fully described in the following sections.
Note: When using a load-balancing deployment such as Scenario II or Scenario IV, the same sapproxy.ini file must reside on each Liquid UI Server.
Note: The Liquid UI Message Server does not support - end-user systems such as Windows 7.
Third-Party Load Balancers
You can use the Server in conjunction with third-party load balancers. The third-party load balancers known to work with Servers are as follows.
|
Company |
Hardware Specifications |
Software Specifications |
|---|---|---|
| A10 Networks |
Physical and SPE appliances |
Comes with Hardware components
|
| HAProxy Technologies |
Linux System Solutions
|
Anomalous behavior detection engine |
| F5 Networks + NGINX |
Comes with Hardware components
|
|
| Citrix |
Comes with Hardware components
|
|
| Progress Kemp |
32 GB Disk Space
2 x virtual CPUs
2 GB memory
|
